Coming with activated carbon (non-woven fabric) layer to filter out fine dust, allergies, smoke, pollution, and almost 95% particles and 95% Covid-19 Virus in the air.

Practical M-shaped nose clip:

You can press the nasal splint gently, push from the center to both sides till it is tightly and comfortably fixed to the nasal bridge, help you prevent dust and breathe smoothly. And it is cut in 3D fits almost any size/shape face, High elastic ear strap has enough elasticity to make a good seal, not tight, and the breath resistance is slow, it can be also molded for proper fit.